Bolt-retainer.



N. G. THALHEIMER.

BOLT RETAINER.

APPLICATION FILED 001 3, 1911.

- Patented Aug. 6, 1912.

- [NVENTOR fl wiwlw Mai/Mime! sans rnrnnr ruin.

NICHOLAS C..THALHEIMER, OF BALTIMORE, MARYLAND, ASSTGNOR F ONE-THIRD T0 CHARLES A. THALHEIMER, 0F BALTIMORE, MARYLAND.

BOLT-RETAINER.

Specification of Letters Patent.

Patented na e. ieia.

Application filed October 3, 1911. Serial No. 652,548.

To all whom it may concern:

Be it known that I, NICHOLAS O. THAL- HEIMER, a citizen of the'United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improvements in Bolt-Retainers, of which the following is a specification.

This invention relates to bolt retaining devices and more particularly to devices of this character for holding the head of a bolt while the nut is being turned or screwed up thereon.

One of the principal objects of the invention is to provide an improvement upon the type of structure illustrated in mycopending "pplication, Serial No. 618,884, which was filed Apr. 4;, 1911.

A further object of the invention is the provision of a bolt head securing device which may be mounted upon a support and which will permit the insertion of a bolt head therein and its removal therefrom without having access to the head of the bolt.

The device is particularly adapted for attaching the end and side ladders or hand holds to house cars. These ladders or hand holds are compelled to be not more than eight inches from the end of the car, which requirement necessitates the bolts for securing the same being passed through the end posts on some types of cars. In all house cars and particularly refrigerating cars, where the refrigerating tanks are mounted in the end the inner sheathing of the car eifectually conceals the bolt and where the tanks are used it is necessary to remove both the tanks and the sheathing to remove the bolts from. the posts when they become broken or sheared oil through contact with ob'ects along the road.

his invention is designed to obviate the diflioulty and necessary expense of removing the tank and the sheathing and provides means whereby the bolt may be inserted from the outside and removed in the same manner, even when sheared ofi' flush with the face of the car.

Further objects of the invention will appear as the following specific description is read in connection with the accompanying drawing which forms a part of this application and, in which Figure 1 is a fragmentary side elevation of a box car showing the ladder rungs attached thereto and with one of the rungs heads 12 and are held in broken away. Fig. 2 is a detail horizontal section taken through the car on a line with the securingbolt and on an enlarged scale. Fig. 3 is a detail section through one of the retaining plates or washers. Fig. i is a similar view taken at right angles through Fig. Fig. 5 is a horizontal section on the line 5-5 of Fig. 4:. Fig. 6 is a fragmentary perspective section of the bolt.

Referring more particularly to the drawing, 1 represents a corner which is secured the inner sheathing 2. The outer portion of the post 1 has secured to it a filler block or post 3 to which is secured the outer sheathing i which forms with the inner sheathing an air space 5. Separated a suitable distance from the corner post 1 is another filler block or post 6 which is connected to both the inner and outer sheathing 3 and 4. The corner post 1, the filler post 3 and the filler post 6 are all provided with a vertically alined series of transverse passages or openings 7 Which are substantially oblong in cross section so as'to receive and permit the passage of the oblong head 8 of the rung bolt 9 and also to permit the insertion of the thumb and fore finger on opposite sides of the bolt, as will be hereinafter described. These bolts pass through a washer 10 which is seated against the sheathing 4 and has a pair of spaced lugs 11 arranged in the aperture or opening 7 so as to hold the bolt centrally therein. outer ends. of the bolts The pass through the rung place by suitable nuts 13.

The bolt mounting or retaining device comprises an integral casting having a base 14 in the form of a plate which is apertured at opposite ends, as shown at 15, to receive securing devices which may be in the form of screws, nails or the like. In the center of the plate a transverse slot or opening 16 is formed and covering the opening is a substantially U-shaped housing 17 having a short side wall 18 upon one side and a similar side wall 19 at the opposite side. These side walls extend from the top of the plate to the top of the housing and from the end walls thereof to the edges of the opening. Immediately opposite the side walls 18 and 19 the base or plate is provided with a pair of came 20 upon which the head of the bolt is adapted to ride prior to being dropped into the sockets 21 which are postor upright to formed by the sidewalls, the base and shoulders 22 produced by the termination of the cams. .The fillerupright 6 is provided with a plurality of recesses 23 which register with the openings 7 therein and in whichthe retaining members are mounted so that the inner sheathing can be arranged flush with the inside of the post and so that the attaching members may be concealed thereby. n will be understood, that it found I desirable the corner post may also be treated in a like manner.

In the before-mentioned application it was found that the structure showntherein was faulty to the following extent: In ram tice, when it was desired .tQ' .iemo've theboltthe head of the same would catch over the head of the plate at opposite ends of the aperture which made it necessary to move the bolt to locate the aperture. In thepresent construction cam lujgs 24 are arranged at opposite ends of the aperture s6 that their inner'cam faces form the end walls of the aperture and serve to guide the head of the bolt to the aperture, thus facilitating its removal from themounting member, as will hereinafter he described.

In building up the car the bolt attaching plates or members-are firstappli'ed-to the post and filler upright before the Sheathin' is put on and the outer sheathing is aperture to correspond with the passages or openings 7 The V bolts are then inserted through the passages and through the slots or openings" 16 in the attaching members and given a quarter turn so that the head willride upon the cam 20 and eventually seat their heads in the sockets 21. The washers 10 are then placed upon the bolts and the rungs secured thereag'ainst upon, the bolts by the nuts 13. When the bolt is sheared 0E in any manner the washer 10 is removed andthe fingersinserted in the aperture onopposite sides. of the bolt, so that it may be forced'inwardly until free of the socket oruntil it contacts with the top of the. housing. Itis thengiven a quarter turn until it comes in contact with the edges of the side walls 18 and 19 when'it may be readily withdrawn trom the attachin memher, the cams 24 guiding the same 1: rough the openings 16. A new bolt is then placed in position in the manner before described and the rung or hand. hold secured thereon, as will be readil understood. i

It will be noticed that the passages are of such construction as to permit the fingers to be inserted to grab the bolt even Where the same has been sheared oil flush with the outer surface of the car. It Will also be noticed that it is not necessary to remove any part of the inner or outer sheathing to re place a broken bolt.

Havin thus described the invention what is claime is:

1. In a device of the class described, the

port combination with a channeled support, a bolt passing through said channel having ahead (it smaller sectional area than thev channel, pert-ured in ans'te receive engage s'aidbolt to prevent the same hem turning, means carried the last-'rfiained means for guiding the bolt inits removal therefrom' together with an object securing member Oiltll bolt. I

a device of the class described, the

cornbination with: a channeled support, of

a bolt passing through said channel and having a head of smaller sectional ar a than the channel, apertured means tojremoveand receive and eng ge the head as the bolt to:

prevent the same ireturning,- guiding members (t1ii'ld by said means; an opposite sidesof the ape-ret re and ada ted to guide the head. er the belt in its remeyal there irtljm and an object securing member on the 0th, 3. In devie,. of the class;desfcribd,'tlie combination with a haaneied suppers eta bolt a sing" throii'ig-h saidtheme and may ing a head of ma er seccipnai area than the channel, a socket meiiiber secured t6 the supnd having an aperture registering with the channel in; the su port, means uide the ho a member, amv means to guide are boltv head to the aperture inits' removal 1mm said member, together with a nut onthe bolt. l. a 4.1m a device of the [las described, the

combination, wlth a channeled support, of.

a bolt passing through said channel and having a head of smallersectional area than the channel, an aperturedhousilig secured te' one side of the support and registering with the channel, means formed upon the housing to prevent the bolt from turning and means 7 to guide the removal of the bolt therefrom.

5. In a deviceof the class described, the

combination with a; channeled support, of

a bolt passing therethroug'h and having a head smaller than thesectional area of the channel,- a retaining member secured over the channel and having an aperture. to con-' nect the passage of the bolt head, said men,

her having sockets therein, means to limit 1 the rotation of the bolt head and to guide the same to the socket, means to prevent the bolt from passing through said member in its entirety and means to guide the removal of the bolt head from the member.

6. In a device of the class described, the combination with a channeled support, of a bolt passing through the channel therein and having a head of smaller sectional area than the channel, a slotted retaining member secured to one side of the support and adapted to removably receive the bolt head, limiting shoulders formed on the member, cams opposite the limiting shoulders and forming therewith sockets to receive the head of the bolt to prevent the same from turning, guiding cams arranged at opposite ends of the slot and adapted to guide the removal of the bolt head from the member, a housing to limit the longitudinal movement of the bolt through the member and a rung securing nut carried by the bolt.

7. In a device of the class described, the combination with a channeled support, of a bolt passing through said channel and having a head of smaller sectional area than the channel, means secured independently of the bolt to the rear of the support for engaging said bolt-to prevent the same from turning, together with means to the bolt on the front of the support.

8. In a device of the class described, the

secure an object on' combination with a channeled support, ofv a bolt passing through said channel, and hav-- ing a head of smaller sectional area than the and adapted to removably receive the bolt,

means formed in the housing to prevent the bolt from turning, and a nut for securing an object on the bolt on the oppositdside of the support.

In testimony whereof I afiix my signature in presence of two witnesses.

NICHOLAS C. THALHEIMER. -Witnesses:

CHAS. A. THALnnnmn, JonN G. Rnnsn. 

